Ok..what's important here is that you have a APU with integrated R7 graphics...and a discrete R7 *** (something) series graphics card.

First have you selected the discrete card as Primary in the bios? This disables the integrated R7 graphics...and the system will now use the discrete R7 2?? . Now when you look for a graphics driver update, you will have to know exactly which R7 200 'series' you have. R7 250? R7 240? Look on the box or receipt.